Mathematics
Grade10
Easy

Question

Use the difference of two squares to find the area of the rectangle.

  1. 954
  2. 864
  3. 874
  4. 904

The correct answer is: 864


    24cross times36 = (30 – 6)(30 + 6)
    Using the pattern (a + b)(a – b) = a2 – b2,
    (30 – 6)(30 + 6) = 302 – 62 = 900 – 36 = 864

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